RationalWiki is a wiki whose ostensible purpose is the combatting of irrationality but is actually as politically correct as anything. I reprint my Usenet post below:

Ironically, though they were formed in opposition to Conservapedia, they practise a similar form of censorship. Considering that there's basically just a few users jerking each other off, I think it would be great to try to take down this place. They're easy to mess with as there is nothing protected, and you can start an article that doesn't exist now. Also, they allow open proxies to edit.